Carbureter.



Patented Apr. 23, l90l.

. M. GOLDSMITH.

C A B B U B E T E R.

(Application filed Jan. 26. 1900.1

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M H 37 2 L p A d t n e t a P H H M S D L 0 G M A 5 2 7 6 nu G A R B U RE T E R.

(Application filed Jan. 26, 1900.)

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UNITED STATES PATENT OFFICE.

JACOB MORTIMER GOLDSMITH, OF CHICAGO, ILLINOIS.

CARBURETER.

SPECIFICATION forming part of Letters Patent No. 672,854, dated April23., 1901.

Application filed January 26, 1900. Serial Dim-2,857. (N0 model To aZZwhont it may concern:

Beit known that I, J AOOB MORTIMER GOLD- SMITH, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements inCarbureters, of which the following is a specification. v

This invention relates to the production of a practically-fixed gas fromcombining air with carbon vapors in such relation and under suchconditions as to create a gas having excessive heating qualities andhigh illuminating efiect when charged with oxygen and which can be usedfor manufacturing and domestic purposes generally.

The invention relates more particularly to generators having a limitedcapacity for each operation and intended for use in buildings andresidences Where only a small gas-supply is required to be constantlymaintained; but the principle of the invention is also adapted for andintended to be used in the construction of generators for producing gasin large quantities.

The objects of the invention are to construct a gas-generating apparatusoperating under a fixed equal pressure and automatically governing andregulating the supply to the demand; to have the hydrocarbon elementsurrounded and protected by water; to so construct and combine theseveral parts that the machine as a Whole will be compact and containedin a very small space; to effectually and reliably gasify or vaporizethe hydrocarbon and charge the air therewith by thoroughly atomizing andcommingling the carbonaceous vapors with the air underpconditions whichwill insure a thorough impregnation and commingling of the airproportionately with the vapors, so as to produce a gaseousnon-condensable body possessing great heating qualities and highilluminating power under proper combustion conditions; to regulate andcontrol the discharge of the oil or carbonaceous liquid and the supplyof the air to take up the necessary amount of oil or carbonaceous liquidin a vapor form and have the control in both cases correlative, so thatWhen the flow of one ceases the flow of the other also ceases and whenthe flow of one commences the flow of the other also commences; todeliver the air-supply under the requisite condition of pressure andheat, so as to insure the taking up or absorbing of the atomized oil orvapor to the full capacity of the air and no more, and to improvegenerally the construction and operation of the machine as a whole.

The invention consists in the several features of construction andcombination of parts hereinafter described and claimed.

In the drawings illustrating the invention, Figure 1 is a sectionalelevation of the generator and the appliances connected therewith,showing, however, the pressure-blower and supply-pipe in elevation; Fig.2, a sectional plan view on line 2 of Fig. 1 looking in the direction ofthe arrow; Fig. 3, a detail, partly in section, of theair-supply-controlling valve; Fig. 4 a detail, partly in section,showing a compressed-air reservoir or flask in conjunction with theair-heating appliance; Fig. 5, a detail of the oil-delivery tube; Fig.6, asectional elevation of the pressure-tube and the filling-tube,showing the guide-rollers for the gasometer-bell; Fig. 7, an endelevation of the tubes and guide-rollers of Fig. 6; Fig. 8, a detail insection showing one of the guide-rollers between the gasometer-bell andthe outer casing; Fig. 9, a crosssection through the spraying-chamberwith the floor of the chamber broken away, show ing the atomizers of thefirst and the second spraying atomizingchambers; and Fig. 10, across-section through the second atomizingchamber with the bottom orfloor broken away, showing the atomizers of the second and thirdatomizing-chambers.

In carrying out my invention I construct an outer cylinder or receptacleAof sheet-iron or other suitable material and of the requisitedimensions'for the capacity of theapparatus. A partition or bottom a issecured in the cylinder A, and above this partition or bottom within thecylinder is located a gasometerbell B, having an open bottom and aclosed top I). This gasometer-bell surrounds an oil reservoir orreceptacle 0, which reservoir or receptacle has a closed top 0 and aclosed bottom 0. The cylinder or receptacle A above the bottom orpartition a is to receive and contain water, and the gasometer-bellenters into and divides the water, so as to leave a surrounding body ofwater around the gasometer-bell on the outside and a body of waterwithin the gasometer-bell surrounding the oil tank or receptacle, bywhich arrangement the oil is surrounded and protected by the water, anda water seal is provided and maintained which prevents any escape of gaswhile the apparatus is in operation.

A tube D opens into the top of the gasometer-bell and extends uptherefrom and is closed tightly at its upper end or top by a suitablecap 01. This tube D incloses a fillingtube E, which opens into theoil-receptacle C, through the top or cover 0 thereof, and, as shown, theupper end of the filling-tube is provided with antifrictionguide-rollers e, which run near or against the interior face of the tubeD, so that the tube E forms a guide-rod by which the tube D andgasometer-bell are guided and maintained in a direct line of movementinconnection with the antifrictionrollers. The tube D, by reason of itsopen connection with the gasometer-bell, permits the gas to pass upthereinto and enter the oil tank or receptacle under thegasometer-pressure for such pressure to exert itself on the oil andcreate a force to assist in the discharge of the oil from thereceptacle, producing, in effect, a pressure-feed for the dischargeproperly of the oil.

A discharge-valve is located in a casing or shell F, screw-threaded intothe bottom of the oil tank or receptacle, so as to have communicationtherewith for the discharge of the oil into the spraying-chamber, andfor ordinary and general usage this automaticallycontrolled valve of theshell or casing F will be all that is required. A three-branch couplingg is attached to the valve shell or casing F and has communicationtherewith. This couplingg carries perforated discharge spraypipes G,which pipes are set at an angle or inclination, as shown, to insure auniform flow and discharge from the pipes their full length, whichresult is had by reason of the unvarying pressure maintained on the oil.

The perforated pipes discharge into what may be termed aspraying-chamber H, having an inclined bottom h, with a perforateddischarge plate or opening covered by a mesh or gauze, forming anatomizer h, and this opening discharges into a second chamber H, whichin turn discharges into a third chamber H which in turn discharges intoa fourth chamber H Each chamber has an inclined bottom hand a perforateddischarge plate or opening covered by a mesh or gauze forming anatomizer h,.and the discharge plates or openings are located atalternate ends or sides of the chambers. The atomizers h increase infineness or mesh as they descend, as shown in Figs. 9 and 10, therebyproducing an increased breaking up or atomizing of the oiland air, so asto thoroughly commingle the two and produce a practicallyfixed gas forheating and illuminating purposes. Any oil not vaporized can be drawnoff at the plug 72, of the last atomizing-chamber.

An induction or supply pipe or tube I for the gasometer-bell, having awire mesh or gauze t' at its lower end, is entered into the chamber Hand this pipe extends up for its top or upper end to be above theWater-line of the receiver A and above the top of the oil-receptacle C,so that the heated air and oil-vapors from the chamber H which havethere become practically a fixed gas, will pass up through the pipe andenter the gasometerbell above the water-line and operate to raise suchbell under a uniform and unvarying pressure. An eduction or dischargepipe J from the gasometer-bell passes in the arrange ment shown downthrough the oil reservoir or receptacle, with its upper end above thetop of such receptacle and above the waterline, and its lower end isprovided with a mesh or gauzej and is entered into an accumulating orfixing chamber K for the gas to flow from the gasometer into suchchamber, to be taken therefrom by a delivery-pipe K and carried to theburners or other place of consumption. The eduction or discharge pipe Jinstead of passing through the oil tank or receptacle could pass down inthe space between the gasometer-bell and the oil-receptacle.

A pipe K enters the accumulating-chamber K and is provided with ashut-01f cook or valve outside of the cylinder or receiver A. This pipehas at its outerend an ordinary Bunsen or other suitable burner 70,above which, in a funnel-shaped heater L, is a heat storing andtransmitting plate It, suspended by a rod 70 so as to properly coactwith the burner. The heater L is formed of an inner shell or cone 1 andan outer shell or cone 1', between which is a space V, closed at thebottom or larger end of the shell or cone. A tube Z extends up from theinner shell or cone through which the suspending-rod 70 passes and overthe end of which such rod is hooked or otherwise secured to properlysuspend the plate or disk 70 and to permit the radiation or passage ofthe air that supports combustion at the burner.

A pipe M is entered into the space 1 and this pipe is connected with apressure-blower M in the arrangement shown in Fig. 1, which blowercan beof any suitable and well-known construction that will produce a steadyblast or current with the requisite pressure to force the air throughthe pipe to enter the space of the heater. The pipe M is provided with arelief-valve m, intermediate of the blower and the heating-chamber,which valve is automatic in its operation in controlling the airblastfrom the blower. The closing of the valve for the blast of hot air inthe conducting-pipe between the heater and the spraying and mixingchamber, with the blower in operation, causes the pressure of the air,which is unable with the supply-valve closed to pass through the heater,to act on the relief-valve m and open such valve for the pressure toescape from the pipe M into space and preventing the pressure from theblower to pass through the heater and enter the spraying and mixingchamber,thus effectuallystopp'ing the generating of gas until throughthe consumption of the gas the gasometer descends to its limit, therebycausing the relief-valve to close and the air to be again passed firstto the air-heating chamber and thence to the gasometer. A pipe N isconnected with the apex or smaller end of the outer 'shell or cone ofthe heater, and this pipe enters a coupling 0 and is continued from suchcoupling, so as to enter and have communication with the spraying orinitial mixing-chamber H for supplying air under pressure to suchchamber.

The coupling 0 has in its chamber a valve P, which in its closedposition abuts against or rests upon a shoulder 0 and in its openposition has an engagement with the wall of the shell by a lug or stop19. This valve is carried by a stem P, mounted in the coupling andsupported in the arrangement shown near its outer end by an arm orbracket Q, having a head or bearing q for the stem, and the arm orbracket is strengthened by a diagonal brace Q extending out from theouter cylinder or receiver. The projecting end of the shaft P hasmounted thereon an arm or lever B, connected with one end of which is arod R, which rod in turn is connected to an arm or crank f on the end ofthe stemf of the valve in the casing or shell F, so that the movement ofthe lever B operates both the valve ofxthe shell or casing F and thevalve P approximately at the same time.

On the extreme end of the stem P, adjacent to the arm or lever B, is acollar or sleeve R having a plate or arm r, with a recess r terminatingat each end in a stop T and in this recess r a projecting pin r'on thearm or lever R enters, so that with the movement of the arm or lever theprojecting pinwill contact the stops and oscillate the valve-stem andraise and lower the valve P. The recess permits a limited movement ofthe arm or lever before the engagement, which limited movement allowsthe arm or lever to pass the center in either direction for the weightor ball R on the lever to act and produce a quick throw of the arm orlever, and consequently a quick opening or closing of the valve,accordingly as the lever is moved.

A bell-crank lever S is mounted on a stud or pivot projecting out froman extension Q on the bracket or arm Q. One end or arm 3 of this leveris connected by a rod or link .9 with the arm or lever B and the otherarm 8 of the lever S is slotted and engages a pin 25 on a sliding rod T,which rod at its lower end is held and guided in an ear or projection ton the bracket or arm Q. The rod T has thereon adjustable contactcollars or rings u and u, with which an arm U, carried by thegasometer-ball, engages as the bell rises and falls.

The upward movement of the bellcauses the arm to contact the collar 11,and raise the rod T, which in turn moves the bell-crank lever for thearm 3' through the link 5 to move the arm or lever B in the direction tothrow down or.close the valve P and at the same time close the valvecontrolling the discharge of the oil, by which movement'both valves aresimultaneously closed, or approximately so. This operation will occurwith the limit of ascent of the gasometer-bell, at which time the fullcapacity of the apparatus has been reached. I

The consumption of the gas permits the gasometer-bell to descend, andwhen the limit of descent has been nearly reached the arm U contacts thecollar or ring u and forces down the rod T, reversing the movement ofthe bellcrank lever and through the arm 3 and link 8 moving the arm orlever R in the opposite direction to the first movement, raising oropening the valve P and at the same time opening the discharge-valvefrom the oil tank or reservoir, so that a renewed operation of producinggas will begin. These operations of opening and closing the two valveswill occur with each operation of the generator, so that the action ofthe valves is automatically changed with and by the condition of the gasin the generator.

A pipe V, having its upper end above the water-line in thegasometer-bell and above the top of the oil-tank, is located in thespace between the bell and the tank. -This pipe passes through thepartition a and out through the wall of the main casing and its endenters a trap and water seal V, from which a discharge-pipe '0, having avalve 1;, leads to a suitable place of discharge. All illuminatinggasesare liable to slight condensation, and

to prevent any ill effects therefrom I provide the drip-pipe V, whichtakes any overflow of water or condensation there may be before itreaches a point where it could pass into the gas-pipes. The trap orwater seal prevents any escape of the gas from the drip or overflow pipeeven when left permanently open.

The air-supply heater L instead of being furnished by a pressure-blowercan be supplied from a compressed-air reservoir ortank M through a pipeM which pipe can have a valve shell or casing m, the valve of which canbe moved through an arm m and a rod m from the lever B, with which therod can be connected. This arrangement requires,as shown, aproperly-constructed air injector or discharge nozzle m which enters asupplypipe M having a funnel-shaped mouth, leaving a space around themouth and between it i and the injector or discharge nozzle for themovement of the compressed air to create a suction or injection of anincreased volume of air from the surrounding atmosphere into the pipe Mto com mingle with the compressed air and be heated and expanded by theheater L in its passage to the supply-pipe N.

The heating of the air before directing it to the chamber H insuresperfectly dry air for absorbing the oil. By this arrangement the propertreatment of the air with the oil will be obtained. The spraying of theoil at first and subsequently atomizing the mixture of oil and air intofiner relations as the operation proceeds through the severalatomizingchambers insures a proportional absorption of oil-vapor to thefull capacity of the air, producing a rich fuel-gas for heating andilluminating requirements.

It will be seen that the oil is fully protected by the surrounding bodyof water and that the discharge of the oil is controlled coincidentlywith the supply of air, and it will be further seen that the dischargeis assisted by the pressure of the produced gas within the oilreceptacle and that such discharge is maintained uniform and regular bysaid pressure and the spraying is uniform and equal the full length ofthe discharge-pipe by reason of the inclination of such pipe and theunvarying pressure until all the oil is consumed.

In order to insure the complete fixing of the produced gas, theaccumulating and final fixing-chamber may be superheated by extending apipe N (shown by dotted lines in Fig. 1) from the flue or pipe Z of theair-heating chamber. This pipe N can be entered into the interior of thechamber K with one or more coils orbends, so as to give considerableheatingsurface, and then be passed through the wall of the chamber, sothat none of the products of combustion will be deposited in thechamber. This arrangement better insures the complete transformation ofthe produced gas into a fixed gas for final consumption and makes thechamber K a final fixing and accumulating chamber.

The apparatus enables the use of air under pressure either from a properpowerblower or in a compressed state to be used in producing a fixed gaswhen combined in proper proportionate quantities with the vapor of thehydrocarbons, and the proper amount of absorption of the vapors by theair is insured by spraying and atomizing the oil to give proportionatequantities of both air and vapor. It also enables either high-gradehydrocarbons or hydrocarbons of a low specific gravity to be used forthe production of a practical fixed gas. This feature of usinglow-specific-gravity oils has not heretofore been successfullyaccomplished owing to the fact that the air will not at its normaltemperature eliminate its moisture and absorb sufficient vapors toproduce a fixed gas. This is overcome by the proper heating of the airbefore absorbing the gas.

The fixed gas produced can be used for illuminating purposes, and thegenerators can be made of small or large capacity, so as to be used inresidences and apartment-buildings as well as in factories. Thestability of the gas apparatus is also of a nature that renders it welladapted for mechanical purposes and for heating buildings and residencesand for use generally in the arts.

The apparatus While primarily intended for use in producing a fixed gasfrom hydrocarbons can be employed in the production of a fixed gas fromnatural or coal gas, so as to give such gas more body, for which purposethe air-supply is not required, but the natural or coal gas can beintroduced into the superheater and transmitted through thedischarge-pipe therefrom into the sprayingchamber to act on thehydrocarbon vapors for such vapors to be proportionately absorbed by thegas and transmitted into the gasometer-bell and thence to the fixing andaccumulating chamber, Where the gas will be supplied with the requisiteamount of hydrocarbon vapors. It will thus be seen that the apparatuscan be used distinctly and separately as a combined pressure-regulatorfor producing gas from atomized vaporized hydrocarbon oil and air andcan also be used as a carbureter for natural or coal gas, by which thegas can be heated, expanded, and enriched by the passage of the gasthrough the heatingchamber and thence into the spraying-chamber andthrough the various vaporizing atomizing chambers into thegasometerbell,andin such passage be thoroughly and completely carburetedby contact with the atomized hydrocarbons, converting thenon-illuminating natural gas to a strong illuminating-gas, to do whichall that is necessary is to dispense with the use of the air-pressureand enter the natural or coal gas under pressure directly into theheating-chamber.

The operation of the apparatus in governing the supply of hydrocarbonsand air or of natural or other gas is entirely automatic and is alwaysunder a fixed equal pressure, so that the discharge of the hydrocarbonelement is in fixed relation to the supply of air or gas, and after theinitial starting the apparatus operates without any special care orattention.

I claim- 1. In a gas-generator, the combination of an outer cylinder orreceptacle for containing a body of water, a gasometer-bell movablewithin the outer cylinder or receptacle, an oilreservoir within thegasometer-bell surrounded by the body of water of the outer cylinder orreceptacle, a tube leading from the gasometer-bell, and a supply-pipefor the oil-reservoir inclosed by the gasometer-bell tube and providedwith guide-rollers for maintaining the tube and gasometer-bell in adirect line of travel, substantially as described.

2. In a gas-generator, the combination of an outer cylinder orreceptacle for containing a body of water, a gasometer-bell movable inthe outer cylinderor receptacle, an oil-reservoir Within thegasometer-bell, a spray-tube below the bottom of the oil-reservoir andhaving valve-controlled communication with the oil-reservoir, aspraying-chamber underneath the oilreservoir within the outer cylinderand into which the spray-tube delivers oil, and an air-su pply pipeleading into the spraying-chamber, substantially as described.

3. In a gas-generator, the combination of an outer cylinder forcontaining a body of Water, a gasometer-bell movable within the on tercylinder or receptacle, an oil-reservoir within thegasometer-bell,oppositely-inclined spraytubes having valve-controlledcom m unication with the oil-reservoir, a spraying-chamber in which theinclined spray-tubes deliver the oil, and an air-supply vpipe leadinginto the spraying-chamber,substantially as described.

4. In a gas-generator, the combination of an oil-reservoir within thegasometer-bell, a

voil-reservoir discharge-tube,a spraying-chamber beneath theoil-reservoir in which the horizontal spray-tube is located and deliversoil, an atomizing-chamber directly below the spraying-chamber havingcommunication therewith, and an air-supply pipe leading into thespraying-chamber and projecting air thereinto for commingling with theoil-spray to have the commingled product pass into theatomizing-chamber, substantially as described.

6. In a gasgenerator, the combination of an oil-reservoir, a spray-tubehaving a valvecontrolled communication with the oil-reservoir, aspraying-chamberin which the spraytube is located and delivers oil, anda series of atomizing-chambers having a mesh ofproportionately-increasing fineness, and an airsupply tube leading intothe spraying-chamber, substantially as described.

'7. In a gas-generator, the combination of an outer cylinder orreceptacle for containing a body of water, a gasomcter-bell movablewithin the outer cylinder or receptacle, an oil reservoir within thegasometer bell, a spray-tube having a Valve-controlled comm unicationwith the oil-reservoir, a sprayingchamber in which the spray-tube islocated and delivers oil, an air-supply pipe leading into thespraying-chamber, a series of atomizingchambers communicating with eachother and with the spraying-chamber and each having a discharge-openingwith an atomizer of proportionately-increasing fineness, a gas-inductionpipe leading from the final atomizing-chamber into the gasometerbell,and a gas-eduction pipe leading from the gasometer-bell into anaccumulating and fixing chamber, substantially as described.

8. In a gas-generator, the combination of an accumulating and fixingchamber receiving a supply of generated gas from a movablegasometer-bell, a pipe leading from the chamber and provided at itsouter end with a burner, an air-heating chamber surrounding the burnerreceiving a supply of air under pressure, and an airsupply pipe leadingfrom the air-heating chamber to the spraying or mixing chamber of thegenerator, substantially as described.

9. In a gas-generator, the combination of an oil-reservoir, avalve-controlled discharge from the oil-reservoir, a spraying or mixingchamber for the discharge, an air-heating chamber receiving and heatinga supply of air under pressure, an air-supply pipe leading from theair-heating chamber to the spraying or mixing chamber and supplying hotair under pressure, a valve in the air-supply pipe, and meansautomatically operated by the rise and fall of the gasometer-bell toclose and open both the oil-controlling valve and theair-supply-controlling valve, substantially as described.

10. In a gas-generator, the combination of an air-heating chamber, anopen-mouthed pipe communicating with the air-heating chamber, adischarge-nozzle for injecting air under pressure into the open-mouthedpipe and producing a suction, and multiplying the supply of outside airin the heating-chamber, and an air-supply pipe leading from theairheating chamber and supplying hot air under pressure to themixing-chamber of the gasgenerator, substantially as described.

11. In a gas-generator, the combination of an oil-reservoir within thegasometer-bell, a spraying-chamber for oil beneath the oil-reservoir andinto which the oil descends from the reservoir, apipe supplying airunder pressure to the spraying-chamber, and a series ofatomizing-chambers below the sprayingchamber one under another and eachhaving a meshed communication with its adjoining chamberfordownwardly-passing oil, air and hydrocarbon vapors from chamber tochamber under the breaking up andatomizing effects of the meshes,substantially as described.

12. In a gas-generator, the combination of a main casing containing abody of water, a gasometer-bell rising and falling within the maincasing, an oil-reservoir within the gasometer-bell surrounded by waterand having a closed bottom and top, a vertical tube having a closedupper end and extending up from the top of the gasometer-bell, and atube open at both ends and extending up into the gasometer-bell tubefrom the top of the oil-reservoir, for the admission of generated fixedgas from the gasometer-bell into the oil-reservoir and have the pressureof the gas act and provide a uniform pressure-feed for the oil,substantially as described.

13. In a gas-generator, the combination ofaspraying-chamber,atomizing-ohambers connected one with the other andreceiving and transmitting oil and air or gas from chamber to chamber inthe production of a fixed gas, a heating-chamber, a blast-pipe supplyingair or gas under pressure to the heating-chamber, and a pipe leadingfrom the heatingchamber to the spraying-chamber for superheating air orgas before entering the spraying-chamber and forcing the air or gas in aheated condition and under pressure into thespraying-chamber,substantially as described.

14. In a gas-generator, the combination of an oil and air receivingchamber, means for spraying the oil as it enters the receivingchamber, aseries of chambers communicating with each other and with thereceiving-chamber, means for atomizing the gas and air in the travelfrom chamber to chamber, a heating-chamber, the blast-pipe supplying airor gas under pressure to the heating-chamber, and a pipe leading fromthe heating-chamber to the oil and air receiving chamber, for supplyingsuperheated air or gas under pressure to combine with the hydrocarbonvapors of the oil developed by spraying and atomizing, substantially asdescribed.

15. In a gas-generator, the combination of an outer casing containing abody of water, a rising-and-falling gasometcr-bell in the outer casingand entered into the water, an oil-reservoir within the gasometer-bell,a pipe extending upward from the top of the oil-reservoir and open atboth ends, and a pipe eX- tending up from the top of the gasometer-belland surrounding the oil-reservoir pipe and having its outer end closed,for admitting gas under pressure into the oil-reservoir and have thepressure of the generated gas operate to feed the oil, substantially asdescribed.

16. In a gas-generator, the combination of an outer casing containing abody of water, a rising-and-falling gasometer-bell in the outer casingand entered into the water, and an oil-reservoir within thegasometer-bell having open communication with the bell above the oil forad mitting pressure from the gasom eterbell into the oil-reservoir abovethe oil and have the pressure act to feed the oil, substantially asdescribed.

17. In a gas-generator, the combination of a rising-and-fallinggasometer-bell, an oil-reservoir within the gasometer-bell, a sprayingand mixing chamber, an air-supply pipe lead- -ing to the spraying andmixing chamber, a

valve in such pipe, a weighted lever carried by the stem of the valve, arod having stops thereon and carried by the gasoineter-bell to rise andfall with the bell, and a link connection between the weighted lever andthe rod for the movements of the gasometer bell to open and close thevalve in the air-supply pipe, substantially as described.

18. In a gas-generator, the combination of arising-and-fallinggasometer-bell, an oil-reservoir within thegasometer-bell, an oil-supply pipe connected with the oil-reservoir, avalve controlling the oil-supply pipe, a spraying and mixing chamberinto which the oilsupply pipe delivers oil, an air-supply pipe leadingto the spraying and mixing chamber,

a valve in the air-supply pipe, a weighted lever on the stem of theair-supply valve, a rod having stops and carried by the gasometerbell torise and fall therewith, a connection between the rod and the weightedlever, and a connection between the weighted lever and the valve of theoil-supply pipe for controlling both the oil and the air supply from themovements of the gasometer-bell, substantially as described.

J. MORTIMER GOLDSMITH.

Witnesses:

JOSEPH R. ISAACSON, J. E. COLE.

